In Demon Souls, right before you fight Old King Allant, I had to fight Ostrava. He was in Black Phantom form. When I dealt my final blow, it pushed him onto the brick wall banister of the staircase and that is where the loot is on top of.
Unfortunately, it's impossible to get on there. Is there any way I can get the loot, i.e. Go to Nexus, reload save? He's the only way to get the Mausoleum key until NG+ and I really don't want to have to wait.